Gao J J, Igalashi K, Nukina M
Faculty of Agriculture, Yamagata University, Japan.
Biosci Biotechnol Biochem. 1999 Jun;63(6):983-8. doi: 10.1271/bbb.63.983.
In our screening program for antioxidants from traditional drugs and foodstuffs, one new phenylpropanoid glycoside, incanoside, was isolated together with four known phenylpropanoid glycosides, verbascoside, isoverbascoside, phlinoside A, and 6-O-caffeoyl-beta-D-glucose from the whole plant of Caryopteris incana (Thunb.) Miq. On the basis of chemical evidence and spectral analysis data, the structure of incanoside was determined to be 1-O-(3,4-dihydroxyphenyl)ethyl-O-beta-D-glucopyranosyl (1-->2)-alpha-L-rhamnopyranosyl(1-->3)-6-O-caffeoyl-beta-D- glucopyranoside. The four phenylpropanoid glycosides exhibited potent radical scavenging activity against DPPH, hydroxyl (.OH), and superoxide anion (O2-.) radicals.
在我们从传统药物和食品中筛选抗氧化剂的项目中，从灰毛大青（Caryopteris incana (Thunb.) Miq.）全株中分离出一种新的苯丙素苷——灰毛大青素苷，以及四种已知的苯丙素苷——毛蕊花糖苷、异毛蕊花糖苷、亚麻糖苷A和6-O-咖啡酰基-β-D-葡萄糖。基于化学证据和光谱分析数据，确定灰毛大青素苷的结构为1-O-(3,4-二羟基苯基)乙基-O-β-D-吡喃葡萄糖基(1→2)-α-L-吡喃鼠李糖基(1→3)-6-O-咖啡酰基-β-D-吡喃葡萄糖苷。这四种苯丙素苷对DPPH、羟基（·OH）和超氧阴离子（O2-·）自由基表现出较强的自由基清除活性。
